Support for spinning-spindles



(No Model.)

J. E. MGMULLAN. SUPPORT POR SPINNING SPINDLES.

No. 420,088. Patented Jan. 2.8, 1800.

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UNITED STATES ATnNT Fries.

JAMES H. MCMULLAN, OF PORTLAND, MAINE, ASSIGNOR TO THE SAWYER SPINDLE COMPANY, OF BOSTON, MASSACHUSETTS.

SUPPORT FOR SPINNING-SPINDLES.

SPECIFICATION forming part of Letters Patent No. 420,088, dated January 28, 1890.

Application filed December 27, 1887. Serial No.259,l30. (No model.)

To all whom it may concern,.-

Be it known that I, JAMES H. MCINIULLAN, a citizen of the United States, residing at Portland, in the county of Cumberland and State of Maine, have invented certain new and' useful Improvements in Supports for Spinning-Spindles, of which the following is a specification.

My invention is an improvement relating more especially to such spinning devices as are secured to a sin gle spindle-supportin g rail, and also to that class of spinning' devices the rotating parts of which are so supported that they may be deflected, when rotating, to a certain extent by the effect of a bobbin or a yarn-load which is not perfectly balanced; and it consists of the construction and combination of parts as hereinafter set forth.

My invention is illustrated in the accompanying drawings, in which- Figure 1 is an elevation, partly in central vertical section, of a single-rail Vspinningspindle with the support-s therefor. Fig. 2 is au elevation of the spindle with a sleevewhirl attached thereto. Fig. 3 is an elevation of that form of step-support which I prefer to use. Fig. 4 is a central sectional elevation of a spindle-step with a portion of the spindle that is supported therein, and Fig. 5 is a plan of said step.

Similar reference-numbers refer to similar parts in all of the views. Y

In the drawings, l represents the bolsterbearing support, which is preferably provided with the external collar 2, the nut 3, and the washer 4, said nut engaging with a screwthread upon the exterior of said support. I prefer to form an oil-chamber 5 in the upper part of the collar 2, as shown, and to forman oil-conduit 6 through the side of the support l and communicating with said chamben "Whenever it may be desired to do so, a washer 18 may be placed encircling the elevated part 7 of the bolster-bearing support and covering the top of the oil-chamber 5 in the usual manner.

At the base of the support l is secured the step-case 8 in any convenient manner, `the construction which I prefer being shown in the drawings. This preferred form of stepthe step-well 11, in which the step 12 is supported. Said step-well is preferably provided with a lower extension 24, smaller in diameter than the main well, and which is used to support and guide the lower end of the step 12, while thevupper part of the well supports and guides the collar 22 upon the step 12, and the intermediate portion 23 contains the open coiled spring 14, which surrounds said lower portion of the step, although said extension may sometimes be dispensed with and the lower end of the step be supported by the spring 1,4. The step -case when made in this manner forms an oil-cup of considerable size, which receives the oil set free when the step is removed for examination or for the purpose of being cleansed, and thus prevents other parts of the spinnin g-frame and the iioor from becoming soiled by the discolored oil at such times.

I prefer to make the step 12, as shown in the drawings, with the collar 22 surrounding it and a little below the lower end of the bearing of the spindle in said step, although the construction thereof may in some cases be changed very materially, it being understood that the step is not so made as to form a combined step and bolster bearing. The cavity in the step 12, which supports the spindle, is preferably made ofthe shape of the spindle and so large that the spindle lits loosely therein, and provided with .oil-holes 13, leading from the space surrounding the step to said cavity in the interior thereof.

The diameter of the various parts of the step 12, including that of the collar 22, is preferably such that the step may yield laterally in all directions to a slight extent without coming in contact with the sides of the step-well or central hole in the bolsterbearing support l. The weight of the step, as well as that of the spindle and its loadv supported by said step, is preferably borne IOO by the open coiled metallic spring 14, one end of which rests upon the bottom ora shoulder in the side of the step-well 11, and the other end of which bears against the collar 22 upon the step 12. This spring' 14 is, when made as illustrated, preferably made longer than the space which it occupies in the completed structure, and is thus in a state of compression when in its place, in consequence of which the collar 22 is pressed with considerable force against the lower end of the bolster-bearing support 1. In order that the sediment which forms within this structure when it is in operation may pass into the step-well 11 without difficulty, conduits 2O or their equivalents are formed to allow said sediment to pass by the collar 22. These conduits-may be made in any convenient way, it being desirable that the step-well 11 and the interior of the lower end of the bol-l form of spinning device, which is illustrated in the drawings, and I accomplish this pur-l pose by making use of solne suitable form of locking device to lock the step 12 and the step-case 9 together. The lock which is illustrated consists of a pin 19, fastened into the wall of the step-case 9, and provided with an inwardly-projecting end which enters the slot 20, which is considerably wider than said projecting end and deep enough to allow the step 12 to move laterallyin all directions to av slight extent with respect to said stepcase. An equivalent lock for this purpose may sometimes be substituted for the one illus` trated.

collar 22 rests against a fixed surface in connection with the bolster-bearing support 1.v Any other construction of the parts whereby a pressure is brought to bear against the lower end of the spring 14, and whereby the step- 12 is held firmly by said spring upwardly against a fixed support, may in some cases be equivalently substituted for said step-case.

I do not desire to limit myself in all cases to the use of the exact form of spring that is illustrated for supporting the step 12, since I` am aware that other forms of spring may sometimes be equivalently substituted there- Y parts are reached for the purpose of examinafor.

The lower part of the spindle 15 is preferably made of a small diameter and terminating in a sharp point, although any other suitable construction of these parts may be adopted at the will of the maker of the device toy meet any unusual requirements. W'hen the lower end of the spindle is made of a small diameter, as shown, the spindle increases in diameter as the bolster-bearing is approached from its lower end. The bolster-bearing is preferablycylindrical. Thespindle ispreferably provided with a sleeve-whirl, the plane of whose band-groove crosses said bearing in its bolster.

The fit of the spindle 15 in its bolster-bearing should be a rather loose one, in order that the blade or upper unsupported end of the spindle may be able to yield slightly to the force exerted thereon by a rotating bobbin or a yarn-load which is not perfectly balanced. The central hole in the bolster-bearing support 1 is shown as a cylindrical one for the greater part of its extent, and slightly larger than the diameter of the spindle, although I do not in all cases desire to limit myself to this exact construction. I prefer to form near the upper part of the bolster-bearing an oilretaining groove 17 to prevent oil in considerable quantities from passing over the top of the bolster 1 when the spindle is being used.

I have found that a spindle of the kind described runs very well indeed at the usual speeds at which such spindles are operated, and that it is perfectly practicable to remove the step-case for the purpose of cleansing it and removing the sediment which is intentionally allowed to settle therein below the lower end of the spindle, even when the spindle is in operation and spinning yarn.

I prefer to make the lit of the lower end of the bolster-bearing support 1 with the shoulder of the step-case with which it is usually in contact so perfect that the joint between them may easily be made impervious to oil by screwing up the step-case tightly, although a soft metallic or other suitable washer may sometimes be advantageously inserted at this joint as an equivalent for such perfect iit.

The much-desired and so-called gyrating capacity of spindles is possessed by my invena tion to a considerable degree, on account of The step-case 8 serves to hold the step 12 5 in such a position that the upper side of the the looseness of the fit of 'the spindle in the step and bolster-bearings, and of the freedom of the step to move laterally to a slight extent in all directions. When an elastic spring supports the step, as herein described, the spindle runs with very little jar indeed at the highest desirable speeds. The form of the IOO IIO

lower end of the spindle insures that the bolster-bearing is properly lubricated when there is suflicient oil in the interior of the bolster, the oil being carried upward by the action upon it of centrifugal force.

Another great advantage of the spinning device, as illustrated, is the cheapness of its construction and the ease with which all its tion and cleansing.

I do not desire to limit myself in the use of my invention in all cases to the particular forms of the various parts of the structure which are herein illustrated, since such forms of some of the parts may in some cases be much changed without departing from the invention. I am especially aware lthat it may in some cases be desirable to make the combined bolster-bearing andbolster-bearing support in two or more pieces, and I do not consider it to be a departure from my invention, as hereinafter claimed, to interpose a washer or other similar bearing-surface between the top of the collar 22 and the bottom of the bolster-bearing support 1 or otherwise in connection with said support, since the action of the various parts of the structure would not be substantially changed thereby.

What I herein claim as new, and desire to secure by Letters Patent, is-

l. A bolster-bearing support provided with a bolster-bearing and adapted to be secured to a spindle-rail, combined with a step, a metallic spring supporting said step and supported by a connection with said bolsterbearing support, said step being free to move laterally in all directions with respect to said bolster-bearing support, a lock preventing the rotation ot" said step, and a spindle fitting loosely in said bolster-bearing, provided with a driving-whirl and supported by said step and bolster-bearing, substantially as described, and for the purposes specified.

2. A bolster-bearing support provided with a bolster-bearing formed integrally therewith and adapted to be secured to a spindle-rail, combined with a step, a metallic spring supporting said step and supported by a connection with said bolster-bearing support, said .step being free to move laterally in all directions with respect to said bolster-bearing support, a lock preventing the rotation of said step, and a spindle fitting loosely in said bolster-bearing, provided with a driving-whirl and supported by said step and bolster-bearing, substantially as described, and for the purposes specified.

3. The combination of a step-case adapted to be attached to and detached from the base and exterior of a bolster-bearing support of a vertical spindle, and forming, when detached, 'an oil-cup of considerable size, with a metallic spring within said step-case, a step supported Within said case by said spring and free to move laterally in all directions with respect to said case, and a lock preventing the rota- 5o tion of said step, substantially as described, and for the purposes set forth.

4. A bolster-bearing support provided with a bolster-bearing and adapted to be secured to a spindle-rail, combined with a step-case at the base of said support, a step and a metallic spring supporting said step and supported in said step-case, a lock preventing the rotation of said step, and a spindle provided with a driving-whirl supported in said step and bolster-bearing and tting loosely in said bolster-bearing, substantially as described, and for the purposes specified.

5. The spinning device, which consists of the bolster-bearing support adapted to be secured to a spindle-rail and provided with an elevated bolster-bearing, a detachable stepcase at the base of said support, a step and a spring within said step-case, said spring supporting said step and forcing it upwardly against a fixed surface, in connection with said bolster-bearing support, said step being free to move laterally in all directions with respect to said step-case and bolster-bearing support, a lock preventing the rotation of said step, and a spindle provided with a sleevewhirl the plane of Whose band-groove crosses said elevated bolster-bearing, substantially as described, and for the purposes specified.

JAMES H. MCMULLAN.

lVitnesses:

CnAs. A. MooDY, JAMES E. EToHELLs. 

